%0 Journal Article %T Electrochemical behaviour of a super austenitic stainless steel in amazonian aqueous environment %A Ntienoue, J.K. %A Reguer, A. %A Robert, F. %A Nait-Rabah, O. %A Roos, C. %J International Journal of Electrochemical Science %D 2013 %V 8 %N 4 %@ 14523981 (Issn) %F Ntienoue_etal2013 %O Export Date: 24 April 2013; Source: Scopus; Language of Original Document: English; Correspondence Address: Roos, C.; Laboratoire Matériaux et Molécules en Milieu Amazonien, Université des Antilles et de la Guyane, UAG-UMR ECOFOG, Campus Trou Biran, Cayenne 97337, French Guiana; email: christophe.roos@guyane.univ-ag.fr %O exported from refbase (http://php.ecofog.gf/refbase/show.php?record=483), last updated on Mon, 27 Jan 2014 11:55:53 -0300 %X The electrochemical behaviour of 254 SMO super austenitic stainless steel in natural seawater collected from river mouth of French Guiana was investigated. A comparative study of samples immersed during 22 days in this environment was made including influences of scraped biofilm introduced in experiments and of stirring. Electrochemical measurements – open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and linear polarisation (LP) – are used to characterize the metal/medium interface included biofilms adhesion. The EDX analysis (EDAX system) shows that the chemical composition of adhered biofilm consists mostly of iron, oxygen, silicon and aluminium and seem preferentially bind on metal defects. © 2013 by ESG. %K Cyclic voltammetry %K Eis %K Esem %K Passive films %K Stainless steel %U https://www.scopus.com/inward/record.url?eid=2-s2.0-84876079342&partnerID=40&md5=e1235c48cb33fe1f4c48083fff15cf7d %U http://php.ecofog.gf/refbase/files/ntienoue/2013/483_Ntienoue_etal2013.pdf %P 4761-4775